Old joke:Three bachelors were kidding their married friend.. . ."You've been married five years now, George," said one, "and still no childeren? Is your wife" (and here he tried a very bad pun) "unbearable?". . .Or," interjected another, "perhaps she's inconceivable?" . . ."Maybe she's, uh, impregnable," joked the third.. . .George shook his head sadly. "No, boys, you're all wrong. She's insurmountable and inscrutable."

A thorough logophile would have more puns here. Let us look at some words that would fit punningly, and look at their true meanings.

George shook his head sadly. "The woman never even stops talking. She's simply not mutable."

A pun, because in fact mutable is not a form of to mute, make silent.mutable – prone to change; inconstant; also, capable of change or of being changed [The antonym, immutable, is more frequently used.]

Jack and Emily were the monikers most frequently given to boys and girls in England and Wales last year. Jack has been tops for a decade, and favourite boys’ names only shuffle their order over time. But Emily has been No 1 for just two years, and girls’ names tend to be more mutable, changing with fashion. – The Times, Jan. 5, 2005

I stared upon his blood-bedabbled breastAnd sang my malediction with the rest.- William Butler Yeats, A Woman Young and OldHe still runs away from danger when he can, still seduces, or is seduced by, every beddable woman, still lies, flatters, and cajoles without scruple.- Anthony Lejeune, book review in National Review, July 10, 1995

Adrienne Shelley, star of Sudden Manhattan, says: "I got a call in my car on my way to an audition from my agent. He said, 'The important thing is that they think you are beddable.'" - Nigel Reynolds, Hollywood femmes fret about 40, London Daily Telegraph, May 18, 2002